1 /* gfortran header file
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
3 Free Software Foundation, Inc.
4 Contributed by Andy Vaught
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 #ifndef GCC_GFORTRAN_H
23 #define GCC_GFORTRAN_H
25 /* It's probably insane to have this large of a header file, but it
26 seemed like everything had to be recompiled anyway when a change
27 was made to a header file, and there were ordering issues with
28 multiple header files. Besides, Microsoft's winnt.h was 250k last
29 time I looked, so by comparison this is perfectly reasonable. */
31 /* Declarations common to the front-end and library are put in
32 libgfortran/libgfortran_frontend.h */
33 #include "libgfortran.h"
38 #include "coretypes.h"
40 #include "splay-tree.h"
41 /* The following ifdefs are recommended by the autoconf documentation
42 for any code using alloca. */
44 /* AIX requires this to be the first thing in the file. */
46 #else /* not __GNUC__ */
49 #else /* do not HAVE_ALLOCA_H */
53 #ifndef alloca /* predefined by HP cc +Olibcalls */
55 #endif /* not predefined */
57 #endif /* do not HAVE_ALLOCA_H */
58 #endif /* not __GNUC__ */
60 /* Major control parameters. */
62 #define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */
63 #define GFC_MAX_BINDING_LABEL_LEN 126 /* (2 * GFC_MAX_SYMBOL_LEN) */
64 #define GFC_MAX_LINE 132 /* Characters beyond this are not seen. */
65 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
67 #define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */
70 #define free(x) Use_gfc_free_instead_of_free()
71 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
74 #define NULL ((void *) 0)
78 #define stringize(x) expand_macro(x)
79 #define expand_macro(x) # x
81 /* For the runtime library, a standard prefix is a requirement to
82 avoid cluttering the namespace with things nobody asked for. It's
83 ugly to look at and a pain to type when you add the prefix by hand,
84 so we hide it behind a macro. */
85 #define PREFIX(x) "_gfortran_" x
88 #define BLANK_COMMON_NAME "__BLNK__"
90 /* Macro to initialize an mstring structure. */
91 #define minit(s, t) { s, NULL, t }
93 /* Structure for storing strings to be matched by gfc_match_string. */
104 /*************************** Enums *****************************/
106 /* Used when matching and resolving data I/O transfer statements. */
109 { M_READ, M_WRITE, M_PRINT, M_INQUIRE }
112 /* The author remains confused to this day about the convention of
113 returning '0' for 'SUCCESS'... or was it the other way around? The
114 following enum makes things much more readable. We also start
115 values off at one instead of zero. */
118 { SUCCESS = 1, FAILURE }
121 /* This is returned by gfc_notification_std to know if, given the flags
122 that were given (-std=, -pedantic) we should issue an error, a warning
126 { SILENT, WARNING, ERROR }
129 /* Matchers return one of these three values. The difference between
130 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
131 successful, but that something non-syntactic is wrong and an error
132 has already been issued. */
135 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
139 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
142 /* Basic types. BT_VOID is used by ISO C Binding so funcs like c_f_pointer
143 can take any arg with the pointer attribute as a param. */
145 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
146 BT_LOGICAL, BT_CHARACTER, BT_DERIVED, BT_PROCEDURE, BT_HOLLERITH,
151 /* Expression node types. */
153 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
154 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL, EXPR_COMPCALL
160 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
161 AS_ASSUMED_SIZE, AS_UNKNOWN
166 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
169 /* Statement label types. */
171 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
172 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
176 /* Intrinsic operators. */
178 { GFC_INTRINSIC_BEGIN = 0,
179 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
180 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
181 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
182 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
183 /* ==, /=, >, >=, <, <= */
184 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
185 INTRINSIC_LT, INTRINSIC_LE,
186 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */
187 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS,
188 INTRINSIC_LT_OS, INTRINSIC_LE_OS,
189 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN,
190 INTRINSIC_PARENTHESES, GFC_INTRINSIC_END /* Sentinel */
195 /* This macro is the number of intrinsic operators that exist.
196 Assumptions are made about the numbering of the interface_op enums. */
197 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
199 /* Arithmetic results. */
201 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
202 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC, ARITH_PROHIBIT
209 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
210 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
211 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
212 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
213 ST_END_FILE, ST_FINAL, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
214 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
215 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
216 ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO,
217 ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT, ST_INQUIRE, ST_INTERFACE,
218 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
219 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
220 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WAIT,
221 ST_WRITE, ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
222 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
223 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM,
224 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
225 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
226 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
227 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
228 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
229 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
230 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
231 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_OMP_TASK, ST_OMP_END_TASK,
232 ST_OMP_TASKWAIT, ST_PROCEDURE, ST_GENERIC,
233 ST_GET_FCN_CHARACTERISTICS, ST_NONE
238 /* Types of interfaces that we can have. Assignment interfaces are
239 considered to be intrinsic operators. */
242 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
243 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT
247 /* Symbol flavors: these are all mutually exclusive.
248 10 elements = 4 bits. */
249 typedef enum sym_flavor
251 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
252 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
257 /* Procedure types. 7 elements = 3 bits. */
258 typedef enum procedure_type
259 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
260 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
265 typedef enum sym_intent
266 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
271 typedef enum gfc_access
272 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
276 /* Flags to keep track of where an interface came from.
277 4 elements = 2 bits. */
279 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
283 /* Whether a SAVE attribute was set explicitly or implicitly. */
284 typedef enum save_state
285 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
289 /* Strings for all symbol attributes. We use these for dumping the
290 parse tree, in error messages, and also when reading and writing
291 modules. In symbol.c. */
292 extern const mstring flavors[];
293 extern const mstring procedures[];
294 extern const mstring intents[];
295 extern const mstring access_types[];
296 extern const mstring ifsrc_types[];
297 extern const mstring save_status[];
299 /* Enumeration of all the generic intrinsic functions. Used by the
300 backend for identification of a function. */
304 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
305 the backend (e.g. KIND). */
336 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
346 GFC_ISYM_DATE_AND_TIME,
350 GFC_ISYM_DOT_PRODUCT,
357 GFC_ISYM_ERFC_SCALED,
378 GFC_ISYM_GET_COMMAND,
379 GFC_ISYM_GET_COMMAND_ARGUMENT,
382 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
408 GFC_ISYM_IS_IOSTAT_END,
409 GFC_ISYM_IS_IOSTAT_EOR,
440 GFC_ISYM_MAXEXPONENT,
447 GFC_ISYM_MINEXPONENT,
467 GFC_ISYM_RANDOM_NUMBER,
468 GFC_ISYM_RANDOM_SEED,
481 GFC_ISYM_SET_EXPONENT,
501 GFC_ISYM_SYSTEM_CLOCK,
522 typedef enum gfc_isym_id gfc_isym_id;
527 GFC_INIT_REAL_OFF = 0,
532 GFC_INIT_REAL_NEG_INF
538 GFC_INIT_LOGICAL_OFF = 0,
539 GFC_INIT_LOGICAL_FALSE,
540 GFC_INIT_LOGICAL_TRUE
546 GFC_INIT_CHARACTER_OFF = 0,
547 GFC_INIT_CHARACTER_ON
549 init_local_character;
553 GFC_INIT_INTEGER_OFF = 0,
558 /************************* Structures *****************************/
560 /* Used for keeping things in balanced binary trees. */
561 #define BBT_HEADER(self) int priority; struct self *left, *right
563 #define NAMED_INTCST(a,b,c,d) a,
566 ISOFORTRANENV_INVALID = -1,
567 #include "iso-fortran-env.def"
568 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
570 iso_fortran_env_symbol;
573 #define NAMED_INTCST(a,b,c,d) a,
574 #define NAMED_REALCST(a,b,c) a,
575 #define NAMED_CMPXCST(a,b,c) a,
576 #define NAMED_LOGCST(a,b,c) a,
577 #define NAMED_CHARKNDCST(a,b,c) a,
578 #define NAMED_CHARCST(a,b,c) a,
579 #define DERIVED_TYPE(a,b,c) a,
580 #define PROCEDURE(a,b) a,
583 ISOCBINDING_INVALID = -1,
584 #include "iso-c-binding.def"
586 ISOCBINDING_NUMBER = ISOCBINDING_LAST
588 iso_c_binding_symbol;
593 #undef NAMED_CHARKNDCST
600 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING
606 char name[GFC_MAX_SYMBOL_LEN + 1];
607 int value; /* Used for both integer and character values. */
612 /* Array of structs, where the structs represent the C interop kinds.
613 The list will be implemented based on a hash of the kind name since
614 these could be accessed multiple times.
615 Declared in trans-types.c as a global, since it's in that file
616 that the list is initialized. */
617 extern CInteropKind_t c_interop_kinds_table[];
619 /* Symbol attribute structure. */
622 /* Variable attributes. */
623 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
624 optional:1, pointer:1, target:1, value:1, volatile_:1, temporary:1,
625 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
626 implied_index:1, subref_array_pointer:1, proc_pointer:1;
628 ENUM_BITFIELD (save_state) save:2;
630 unsigned data:1, /* Symbol is named in a DATA statement. */
631 is_protected:1, /* Symbol has been marked as protected. */
632 use_assoc:1, /* Symbol has been use-associated. */
633 use_only:1, /* Symbol has been use-associated, with ONLY. */
634 use_rename:1, /* Symbol has been use-associated and renamed. */
635 imported:1; /* Symbol has been associated by IMPORT. */
637 unsigned in_namelist:1, in_common:1, in_equivalence:1;
638 unsigned function:1, subroutine:1, procedure:1;
639 unsigned generic:1, generic_copy:1;
640 unsigned implicit_type:1; /* Type defined via implicit rules. */
641 unsigned untyped:1; /* No implicit type could be found. */
643 unsigned is_bind_c:1; /* say if is bound to C. */
644 unsigned extension:1; /* extends a derived type. */
646 /* These flags are both in the typespec and attribute. The attribute
647 list is what gets read from/written to a module file. The typespec
648 is created from a decl being processed. */
649 unsigned is_c_interop:1; /* It's c interoperable. */
650 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
652 /* Function/subroutine attributes */
653 unsigned sequence:1, elemental:1, pure:1, recursive:1;
654 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
656 /* This is set if the subroutine doesn't return. Currently, this
657 is only possible for intrinsic subroutines. */
660 /* Set if this procedure is an alternate entry point. These procedures
661 don't have any code associated, and the backend will turn them into
662 thunks to the master function. */
665 /* Set if this is the master function for a procedure with multiple
667 unsigned entry_master:1;
669 /* Set if this is the master function for a function with multiple
670 entry points where characteristics of the entry points differ. */
671 unsigned mixed_entry_master:1;
673 /* Set if a function must always be referenced by an explicit interface. */
674 unsigned always_explicit:1;
676 /* Set if the symbol has been referenced in an expression. No further
677 modification of type or type parameters is permitted. */
678 unsigned referenced:1;
680 /* Set if the symbol has ambiguous interfaces. */
681 unsigned ambiguous_interfaces:1;
683 /* Set if this is the symbol for the main program. */
684 unsigned is_main_program:1;
686 /* Mutually exclusive multibit attributes. */
687 ENUM_BITFIELD (gfc_access) access:2;
688 ENUM_BITFIELD (sym_intent) intent:2;
689 ENUM_BITFIELD (sym_flavor) flavor:4;
690 ENUM_BITFIELD (ifsrc) if_source:2;
692 ENUM_BITFIELD (procedure_type) proc:3;
694 /* Special attributes for Cray pointers, pointees. */
695 unsigned cray_pointer:1, cray_pointee:1;
697 /* The symbol is a derived type with allocatable components, pointer
698 components or private components, possibly nested. zero_comp
699 is true if the derived type has no component at all. */
700 unsigned alloc_comp:1, pointer_comp:1, private_comp:1, zero_comp:1;
702 /* The namespace where the VOLATILE attribute has been set. */
703 struct gfc_namespace *volatile_ns;
708 /* We need to store source lines as sequences of multibyte source
709 characters. We define here a type wide enough to hold any multibyte
710 source character, just like libcpp does. A 32-bit type is enough. */
712 #if HOST_BITS_PER_INT >= 32
713 typedef unsigned int gfc_char_t;
714 #elif HOST_BITS_PER_LONG >= 32
715 typedef unsigned long gfc_char_t;
716 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
717 typedef unsigned long long gfc_char_t;
719 # error "Cannot find an integer type with at least 32 bits"
723 /* The following three structures are used to identify a location in
726 gfc_file is used to maintain a tree of the source files and how
727 they include each other
729 gfc_linebuf holds a single line of source code and information
730 which file it resides in
732 locus point to the sourceline and the character in the source
736 typedef struct gfc_file
738 struct gfc_file *next, *up;
739 int inclusion_line, line;
743 typedef struct gfc_linebuf
745 source_location location;
746 struct gfc_file *file;
747 struct gfc_linebuf *next;
755 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
757 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
765 /* In order for the "gfc" format checking to work correctly, you must
766 have declared a typedef locus first. */
767 #if GCC_VERSION >= 4001
768 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
770 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
774 /* Suppress error messages or re-enable them. */
776 void gfc_push_suppress_errors (void);
777 void gfc_pop_suppress_errors (void);
780 /* Character length structures hold the expression that gives the
781 length of a character variable. We avoid putting these into
782 gfc_typespec because doing so prevents us from doing structure
783 copies and forces us to deallocate any typespecs we create, as well
784 as structures that contain typespecs. They also can have multiple
785 character typespecs pointing to them.
787 These structures form a singly linked list within the current
788 namespace and are deallocated with the namespace. It is possible to
789 end up with gfc_charlen structures that have nothing pointing to them. */
791 typedef struct gfc_charlen
793 struct gfc_expr *length;
794 struct gfc_charlen *next;
795 bool length_from_typespec; /* Length from explicit array ctor typespec? */
797 tree passed_length; /* Length argument explicitelly passed. */
803 #define gfc_get_charlen() XCNEW (gfc_charlen)
805 /* Type specification structure. FIXME: derived and cl could be union??? */
810 struct gfc_symbol *derived;
811 gfc_charlen *cl; /* For character types only. */
812 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
819 /* Array specification. */
822 int rank; /* A rank of zero means that a variable is a scalar. */
824 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
826 /* These two fields are used with the Cray Pointer extension. */
827 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
828 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
829 AS_EXPLICIT, but we want to remember that we
835 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
838 /* Components of derived types. */
839 typedef struct gfc_component
844 symbol_attribute attr;
849 struct gfc_expr *initializer;
850 struct gfc_component *next;
854 #define gfc_get_component() XCNEW (gfc_component)
856 /* Formal argument lists are lists of symbols. */
857 typedef struct gfc_formal_arglist
859 /* Symbol representing the argument at this position in the arglist. */
860 struct gfc_symbol *sym;
861 /* Points to the next formal argument. */
862 struct gfc_formal_arglist *next;
866 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
869 /* The gfc_actual_arglist structure is for actual arguments. */
870 typedef struct gfc_actual_arglist
873 /* Alternate return label when the expr member is null. */
874 struct gfc_st_label *label;
876 /* This is set to the type of an eventual omitted optional
877 argument. This is used to determine if a hidden string length
878 argument has to be added to a function call. */
881 struct gfc_expr *expr;
882 struct gfc_actual_arglist *next;
886 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
889 /* Because a symbol can belong to multiple namelists, they must be
890 linked externally to the symbol itself. */
891 typedef struct gfc_namelist
893 struct gfc_symbol *sym;
894 struct gfc_namelist *next;
898 #define gfc_get_namelist() XCNEW (gfc_namelist)
903 OMP_LIST_FIRSTPRIVATE,
904 OMP_LIST_LASTPRIVATE,
905 OMP_LIST_COPYPRIVATE,
909 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
921 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
925 /* Because a symbol can belong to multiple namelists, they must be
926 linked externally to the symbol itself. */
927 typedef struct gfc_omp_clauses
929 struct gfc_expr *if_expr;
930 struct gfc_expr *num_threads;
931 gfc_namelist *lists[OMP_LIST_NUM];
941 struct gfc_expr *chunk_size;
948 OMP_DEFAULT_FIRSTPRIVATE
951 bool nowait, ordered, untied;
955 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
958 /* The gfc_st_label structure is a BBT attached to a namespace that
959 records the usage of statement labels within that space. */
961 typedef struct gfc_st_label
963 BBT_HEADER(gfc_st_label);
967 gfc_sl_type defined, referenced;
969 struct gfc_expr *format;
978 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
979 typedef struct gfc_interface
981 struct gfc_symbol *sym;
983 struct gfc_interface *next;
987 #define gfc_get_interface() XCNEW (gfc_interface)
989 /* User operator nodes. These are like stripped down symbols. */
995 struct gfc_namespace *ns;
1001 /* A list of specific bindings that are associated with a generic spec. */
1002 typedef struct gfc_tbp_generic
1004 /* The parser sets specific_st, upon resolution we look for the corresponding
1005 gfc_typebound_proc and set specific for further use. */
1006 struct gfc_symtree* specific_st;
1007 struct gfc_typebound_proc* specific;
1009 struct gfc_tbp_generic* next;
1013 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1016 /* Data needed for type-bound procedures. */
1017 typedef struct gfc_typebound_proc
1019 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1023 struct gfc_symtree* specific; /* The interface if DEFERRED. */
1024 gfc_tbp_generic* generic;
1029 char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1031 /* The overridden type-bound proc (or GENERIC with this name in the
1032 parent-type) or NULL if non. */
1033 struct gfc_typebound_proc* overridden;
1035 /* Once resolved, we use the position of pass_arg in the formal arglist of
1036 the binding-target procedure to identify it. The first argument has
1037 number 1 here, the second 2, and so on. */
1038 unsigned pass_arg_num;
1040 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1041 unsigned non_overridable:1;
1042 unsigned deferred:1;
1043 unsigned is_generic:1;
1044 unsigned function:1, subroutine:1;
1045 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1049 #define gfc_get_typebound_proc() XCNEW (gfc_typebound_proc)
1052 /* Symbol nodes. These are important things. They are what the
1053 standard refers to as "entities". The possibly multiple names that
1054 refer to the same entity are accomplished by a binary tree of
1055 symtree structures that is balanced by the red-black method-- more
1056 than one symtree node can point to any given symbol. */
1058 typedef struct gfc_symbol
1060 const char *name; /* Primary name, before renaming */
1061 const char *module; /* Module this symbol came from */
1065 symbol_attribute attr;
1067 /* The formal member points to the formal argument list if the
1068 symbol is a function or subroutine name. If the symbol is a
1069 generic name, the generic member points to the list of
1072 gfc_interface *generic;
1073 gfc_access component_access;
1075 gfc_formal_arglist *formal;
1076 struct gfc_namespace *formal_ns;
1077 struct gfc_namespace *f2k_derived;
1079 struct gfc_expr *value; /* Parameter/Initializer value */
1081 struct gfc_symbol *result; /* function result symbol */
1082 gfc_component *components; /* Derived type components */
1084 /* Defined only for Cray pointees; points to their pointer. */
1085 struct gfc_symbol *cp_pointer;
1087 struct gfc_symbol *common_next; /* Links for COMMON syms */
1089 /* This is in fact a gfc_common_head but it is only used for pointer
1090 comparisons to check if symbols are in the same common block. */
1091 struct gfc_common_head* common_head;
1093 /* Make sure setup code for dummy arguments is generated in the correct
1099 gfc_namelist *namelist, *namelist_tail;
1101 /* Change management fields. Symbols that might be modified by the
1102 current statement have the mark member nonzero and are kept in a
1103 singly linked list through the tlink field. Of these symbols,
1104 symbols with old_symbol equal to NULL are symbols created within
1105 the current statement. Otherwise, old_symbol points to a copy of
1108 struct gfc_symbol *old_symbol, *tlink;
1109 unsigned mark:1, gfc_new:1;
1110 /* Nonzero if all equivalences associated with this symbol have been
1112 unsigned equiv_built:1;
1113 /* Set if this variable is used as an index name in a FORALL. */
1114 unsigned forall_index:1;
1116 struct gfc_namespace *ns; /* namespace containing this symbol */
1120 /* Identity of the intrinsic module the symbol comes from, or
1121 INTMOD_NONE if it's not imported from a intrinsic module. */
1122 intmod_id from_intmod;
1123 /* Identity of the symbol from intrinsic modules, from enums maintained
1124 separately by each intrinsic module. Used together with from_intmod,
1125 it uniquely identifies a symbol from an intrinsic module. */
1128 /* This may be repetitive, since the typespec now has a binding
1130 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1131 /* Store a reference to the common_block, if this symbol is in one. */
1132 struct gfc_common_head *common_block;
1137 /* This structure is used to keep track of symbols in common blocks. */
1138 typedef struct gfc_common_head
1141 char use_assoc, saved, threadprivate;
1142 char name[GFC_MAX_SYMBOL_LEN + 1];
1143 struct gfc_symbol *head;
1144 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1149 #define gfc_get_common_head() XCNEW (gfc_common_head)
1152 /* A list of all the alternate entry points for a procedure. */
1154 typedef struct gfc_entry_list
1156 /* The symbol for this entry point. */
1158 /* The zero-based id of this entry point. */
1160 /* The LABEL_EXPR marking this entry point. */
1162 /* The next item in the list. */
1163 struct gfc_entry_list *next;
1167 #define gfc_get_entry_list() \
1168 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1170 /* Lists of rename info for the USE statement. */
1172 typedef struct gfc_use_rename
1174 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1175 struct gfc_use_rename *next;
1177 gfc_intrinsic_op op;
1182 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
1184 /* A list of all USE statements in a namespace. */
1186 typedef struct gfc_use_list
1188 const char *module_name;
1190 struct gfc_use_rename *rename;
1192 /* Next USE statement. */
1193 struct gfc_use_list *next;
1197 #define gfc_get_use_list() \
1198 (gfc_use_list *) gfc_getmem(sizeof(gfc_use_list))
1200 /* Within a namespace, symbols are pointed to by symtree nodes that
1201 are linked together in a balanced binary tree. There can be
1202 several symtrees pointing to the same symbol node via USE
1205 typedef struct gfc_symtree
1207 BBT_HEADER (gfc_symtree);
1212 gfc_symbol *sym; /* Symbol associated with this node */
1214 gfc_common_head *common;
1218 /* Data for type-bound procedures; NULL if no type-bound procedure. */
1219 gfc_typebound_proc* typebound;
1223 /* A linked list of derived types in the namespace. */
1224 typedef struct gfc_dt_list
1226 struct gfc_symbol *derived;
1227 struct gfc_dt_list *next;
1231 #define gfc_get_dt_list() XCNEW (gfc_dt_list)
1233 /* A list of all derived types. */
1234 extern gfc_dt_list *gfc_derived_types;
1236 /* A namespace describes the contents of procedure, module or
1238 /* ??? Anything else use these? */
1240 typedef struct gfc_namespace
1242 /* Tree containing all the symbols in this namespace. */
1243 gfc_symtree *sym_root;
1244 /* Tree containing all the user-defined operators in the namespace. */
1245 gfc_symtree *uop_root;
1246 /* Tree containing all the common blocks. */
1247 gfc_symtree *common_root;
1248 /* Linked list of finalizer procedures. */
1249 struct gfc_finalizer *finalizers;
1251 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1252 int set_flag[GFC_LETTERS];
1253 /* Keeps track of the implicit types associated with the letters. */
1254 gfc_typespec default_type[GFC_LETTERS];
1255 /* Store the positions of IMPLICIT statements. */
1256 locus implicit_loc[GFC_LETTERS];
1258 /* If this is a namespace of a procedure, this points to the procedure. */
1259 struct gfc_symbol *proc_name;
1260 /* If this is the namespace of a unit which contains executable
1261 code, this points to it. */
1262 struct gfc_code *code;
1264 /* Points to the equivalences set up in this namespace. */
1265 struct gfc_equiv *equiv;
1267 /* Points to the equivalence groups produced by trans_common. */
1268 struct gfc_equiv_list *equiv_lists;
1270 gfc_interface *op[GFC_INTRINSIC_OPS];
1272 /* Points to the parent namespace, i.e. the namespace of a module or
1273 procedure in which the procedure belonging to this namespace is
1274 contained. The parent namespace points to this namespace either
1275 directly via CONTAINED, or indirectly via the chain built by
1277 struct gfc_namespace *parent;
1278 /* CONTAINED points to the first contained namespace. Sibling
1279 namespaces are chained via SIBLING. */
1280 struct gfc_namespace *contained, *sibling;
1282 gfc_common_head blank_common;
1283 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1285 gfc_st_label *st_labels;
1286 /* This list holds information about all the data initializers in
1288 struct gfc_data *data;
1290 gfc_charlen *cl_list, *old_cl_list;
1292 int save_all, seen_save, seen_implicit_none;
1294 /* Normally we don't need to refcount namespaces. However when we read
1295 a module containing a function with multiple entry points, this
1296 will appear as several functions with the same formal namespace. */
1299 /* A list of all alternate entry points to this procedure (or NULL). */
1300 gfc_entry_list *entries;
1302 /* A list of USE statements in this namespace. */
1303 gfc_use_list *use_stmts;
1305 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1308 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1311 /* Set to 1 if resolved has been called for this namespace. */
1316 extern gfc_namespace *gfc_current_ns;
1317 extern gfc_namespace *gfc_global_ns_list;
1319 /* Global symbols are symbols of global scope. Currently we only use
1320 this to detect collisions already when parsing.
1321 TODO: Extend to verify procedure calls. */
1323 typedef struct gfc_gsymbol
1325 BBT_HEADER(gfc_gsymbol);
1328 const char *sym_name;
1329 const char *mod_name;
1330 const char *binding_label;
1331 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1332 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1340 extern gfc_gsymbol *gfc_gsym_root;
1342 /* Information on interfaces being built. */
1345 interface_type type;
1349 gfc_intrinsic_op op;
1353 extern gfc_interface_info current_interface;
1356 /* Array reference. */
1357 typedef struct gfc_array_ref
1360 int dimen; /* # of components in the reference */
1364 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1365 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1366 *stride[GFC_MAX_DIMENSIONS];
1369 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1370 dimen_type[GFC_MAX_DIMENSIONS];
1372 struct gfc_expr *offset;
1376 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
1379 /* Component reference nodes. A variable is stored as an expression
1380 node that points to the base symbol. After that, a singly linked
1381 list of component reference nodes gives the variable's complete
1382 resolution. The array_ref component may be present and comes
1383 before the component component. */
1386 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1389 typedef struct gfc_ref
1395 struct gfc_array_ref ar;
1399 gfc_component *component;
1406 struct gfc_expr *start, *end; /* Substring */
1407 gfc_charlen *length;
1414 struct gfc_ref *next;
1418 #define gfc_get_ref() XCNEW (gfc_ref)
1421 /* Structures representing intrinsic symbols and their arguments lists. */
1422 typedef struct gfc_intrinsic_arg
1424 char name[GFC_MAX_SYMBOL_LEN + 1];
1428 gfc_actual_arglist *actual;
1430 struct gfc_intrinsic_arg *next;
1436 /* Specifies the various kinds of check functions used to verify the
1437 argument lists of intrinsic functions. fX with X an integer refer
1438 to check functions of intrinsics with X arguments. f1m is used for
1439 the MAX and MIN intrinsics which can have an arbitrary number of
1440 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1441 these have special semantics. */
1445 gfc_try (*f0)(void);
1446 gfc_try (*f1)(struct gfc_expr *);
1447 gfc_try (*f1m)(gfc_actual_arglist *);
1448 gfc_try (*f2)(struct gfc_expr *, struct gfc_expr *);
1449 gfc_try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1450 gfc_try (*f3ml)(gfc_actual_arglist *);
1451 gfc_try (*f3red)(gfc_actual_arglist *);
1452 gfc_try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1454 gfc_try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1455 struct gfc_expr *, struct gfc_expr *);
1459 /* Like gfc_check_f, these specify the type of the simplification
1460 function associated with an intrinsic. The fX are just like in
1461 gfc_check_f. cc is used for type conversion functions. */
1465 struct gfc_expr *(*f0)(void);
1466 struct gfc_expr *(*f1)(struct gfc_expr *);
1467 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1468 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1470 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1471 struct gfc_expr *, struct gfc_expr *);
1472 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1473 struct gfc_expr *, struct gfc_expr *,
1475 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1479 /* Again like gfc_check_f, these specify the type of the resolution
1480 function associated with an intrinsic. The fX are just like in
1481 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1485 void (*f0)(struct gfc_expr *);
1486 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1487 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1488 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1489 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1491 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1492 struct gfc_expr *, struct gfc_expr *);
1493 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1494 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1495 void (*s1)(struct gfc_code *);
1500 typedef struct gfc_intrinsic_sym
1502 const char *name, *lib_name;
1503 gfc_intrinsic_arg *formal;
1505 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1506 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1;
1510 gfc_simplify_f simplify;
1512 gfc_resolve_f resolve;
1513 struct gfc_intrinsic_sym *specific_head, *next;
1520 /* Expression nodes. The expression node types deserve explanations,
1521 since the last couple can be easily misconstrued:
1523 EXPR_OP Operator node pointing to one or two other nodes
1524 EXPR_FUNCTION Function call, symbol points to function's name
1525 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1526 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1527 which expresses structure, array and substring refs.
1528 EXPR_NULL The NULL pointer value (which also has a basic type).
1529 EXPR_SUBSTRING A substring of a constant string
1530 EXPR_STRUCTURE A structure constructor
1531 EXPR_ARRAY An array constructor.
1532 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
1533 component or type-bound procedure. */
1537 #define GFC_RND_MODE GMP_RNDN
1539 typedef struct gfc_expr
1543 gfc_typespec ts; /* These two refer to the overall expression */
1546 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1548 /* Nonnull for functions and structure constructors, the base object for
1550 gfc_symtree *symtree;
1556 /* True if the expression is a call to a function that returns an array,
1557 and if we have decided not to allocate temporary data for that array.
1558 is_boz is true if the integer is regarded as BOZ bitpatten and is_snan
1559 denotes a signalling not-a-number. */
1560 unsigned int inline_noncopying_intrinsic : 1, is_boz : 1, is_snan : 1;
1562 /* Sometimes, when an error has been emitted, it is necessary to prevent
1563 it from recurring. */
1564 unsigned int error : 1;
1566 /* Mark and expression where a user operator has been substituted by
1567 a function call in interface.c(gfc_extend_expr). */
1568 unsigned int user_operator : 1;
1570 /* Used to quickly find a given constructor by its offset. */
1571 splay_tree con_by_offset;
1573 /* If an expression comes from a Hollerith constant or compile-time
1574 evaluation of a transfer statement, it may have a prescribed target-
1575 memory representation, and these cannot always be backformed from
1602 gfc_intrinsic_op op;
1604 struct gfc_expr *op1, *op2;
1610 gfc_actual_arglist *actual;
1611 const char *name; /* Points to the ultimate name of the function */
1612 gfc_intrinsic_sym *isym;
1619 gfc_actual_arglist* actual;
1620 gfc_typebound_proc* tbp;
1632 struct gfc_constructor *constructor;
1640 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1642 /* Structures for information associated with different kinds of
1643 numbers. The first set of integer parameters define all there is
1644 to know about a particular kind. The rest of the elements are
1645 computed from the first elements. */
1649 /* Values really representable by the target. */
1650 mpz_t huge, pedantic_min_int, min_int;
1652 int kind, radix, digits, bit_size, range;
1654 /* True if the C type of the given name maps to this precision.
1655 Note that more than one bit can be set. */
1656 unsigned int c_char : 1;
1657 unsigned int c_short : 1;
1658 unsigned int c_int : 1;
1659 unsigned int c_long : 1;
1660 unsigned int c_long_long : 1;
1664 extern gfc_integer_info gfc_integer_kinds[];
1671 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1672 unsigned int c_bool : 1;
1676 extern gfc_logical_info gfc_logical_kinds[];
1681 mpfr_t epsilon, huge, tiny, subnormal;
1682 int kind, radix, digits, min_exponent, max_exponent;
1683 int range, precision;
1685 /* The precision of the type as reported by GET_MODE_PRECISION. */
1688 /* True if the C type of the given name maps to this precision.
1689 Note that more than one bit can be set. */
1690 unsigned int c_float : 1;
1691 unsigned int c_double : 1;
1692 unsigned int c_long_double : 1;
1696 extern gfc_real_info gfc_real_kinds[];
1705 extern gfc_character_info gfc_character_kinds[];
1708 /* Equivalence structures. Equivalent lvalues are linked along the
1709 *eq pointer, equivalence sets are strung along the *next node. */
1710 typedef struct gfc_equiv
1712 struct gfc_equiv *next, *eq;
1719 #define gfc_get_equiv() XCNEW (gfc_equiv)
1721 /* Holds a single equivalence member after processing. */
1722 typedef struct gfc_equiv_info
1725 HOST_WIDE_INT offset;
1726 HOST_WIDE_INT length;
1727 struct gfc_equiv_info *next;
1730 /* Holds equivalence groups, after they have been processed. */
1731 typedef struct gfc_equiv_list
1733 gfc_equiv_info *equiv;
1734 struct gfc_equiv_list *next;
1737 /* gfc_case stores the selector list of a case statement. The *low
1738 and *high pointers can point to the same expression in the case of
1739 a single value. If *high is NULL, the selection is from *low
1740 upwards, if *low is NULL the selection is *high downwards.
1742 This structure has separate fields to allow single and double linked
1743 lists of CASEs at the same time. The singe linked list along the NEXT
1744 field is a list of cases for a single CASE label. The double linked
1745 list along the LEFT/RIGHT fields is used to detect overlap and to
1746 build a table of the cases for SELECT constructs with a CHARACTER
1749 typedef struct gfc_case
1751 /* Where we saw this case. */
1755 /* Case range values. If (low == high), it's a single value. If one of
1756 the labels is NULL, it's an unbounded case. If both are NULL, this
1757 represents the default case. */
1758 gfc_expr *low, *high;
1760 /* Next case label in the list of cases for a single CASE label. */
1761 struct gfc_case *next;
1763 /* Used for detecting overlap, and for code generation. */
1764 struct gfc_case *left, *right;
1766 /* True if this case label can never be matched. */
1771 #define gfc_get_case() XCNEW (gfc_case)
1776 gfc_expr *var, *start, *end, *step;
1780 #define gfc_get_iterator() XCNEW (gfc_iterator)
1783 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1785 typedef struct gfc_alloc
1788 struct gfc_alloc *next;
1792 #define gfc_get_alloc() XCNEW (gfc_alloc)
1797 gfc_expr *unit, *file, *status, *access, *form, *recl,
1798 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
1799 *decimal, *encoding, *round, *sign, *asynchronous, *id;
1807 gfc_expr *unit, *status, *iostat, *iomsg;
1815 gfc_expr *unit, *iostat, *iomsg;
1823 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1824 *name, *access, *sequential, *direct, *form, *formatted,
1825 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1826 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
1827 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id;
1837 gfc_expr *unit, *iostat, *iomsg, *id;
1838 gfc_st_label *err, *end, *eor;
1845 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
1846 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
1847 *sign, *extra_comma;
1849 gfc_symbol *namelist;
1850 /* A format_label of `format_asterisk' indicates the "*" format */
1851 gfc_st_label *format_label;
1852 gfc_st_label *err, *end, *eor;
1854 locus eor_where, end_where, err_where;
1859 typedef struct gfc_forall_iterator
1861 gfc_expr *var, *start, *end, *stride;
1862 struct gfc_forall_iterator *next;
1864 gfc_forall_iterator;
1867 /* Executable statements that fill gfc_code structures. */
1870 EXEC_NOP = 1, EXEC_END_BLOCK, EXEC_ASSIGN, EXEC_LABEL_ASSIGN,
1871 EXEC_POINTER_ASSIGN,
1872 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
1873 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1874 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1875 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1876 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1877 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
1878 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1879 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1880 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1881 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1882 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1883 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1884 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1885 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT
1889 typedef struct gfc_code
1893 struct gfc_code *block, *next;
1896 gfc_st_label *here, *label, *label2, *label3;
1897 gfc_symtree *symtree;
1898 gfc_expr *expr, *expr2;
1899 /* A name isn't sufficient to identify a subroutine, we need the actual
1900 symbol for the interface definition.
1901 const char *sub_name; */
1902 gfc_symbol *resolved_sym;
1903 gfc_intrinsic_sym *resolved_isym;
1907 gfc_actual_arglist *actual;
1908 gfc_case *case_list;
1909 gfc_iterator *iterator;
1910 gfc_alloc *alloc_list;
1913 gfc_filepos *filepos;
1914 gfc_inquire *inquire;
1917 gfc_forall_iterator *forall_iterator;
1918 struct gfc_code *whichloop;
1920 gfc_entry_list *entry;
1921 gfc_omp_clauses *omp_clauses;
1922 const char *omp_name;
1923 gfc_namelist *omp_namelist;
1926 ext; /* Points to additional structures required by statement */
1928 /* Backend_decl is used for cycle and break labels in do loops, and
1929 probably for other constructs as well, once we translate them. */
1935 /* Storage for DATA statements. */
1936 typedef struct gfc_data_variable
1940 struct gfc_data_variable *list, *next;
1945 typedef struct gfc_data_value
1949 struct gfc_data_value *next;
1954 typedef struct gfc_data
1956 gfc_data_variable *var;
1957 gfc_data_value *value;
1960 struct gfc_data *next;
1965 /* Structure for holding compile options */
1969 gfc_source_form source_form;
1970 /* Maximum line lengths in fixed- and free-form source, respectively.
1971 When fixed_line_length or free_line_length are 0, the whole line is used,
1972 regardless of length.
1974 If the user requests a fixed_line_length <7 then gfc_init_options()
1975 emits a fatal error. */
1976 int fixed_line_length;
1977 int free_line_length;
1978 /* Maximum number of continuation lines in fixed- and free-form source,
1980 int max_continue_fixed;
1981 int max_continue_free;
1982 int max_identifier_length;
1983 int dump_parse_tree;
1987 int warn_conversion;
1988 int warn_implicit_interface;
1989 int warn_line_truncation;
1990 int warn_surprising;
1993 int warn_intrinsic_shadow;
1994 int warn_intrinsics_std;
1995 int warn_character_truncation;
1996 int warn_array_temp;
1997 int warn_align_commons;
2000 int flag_all_intrinsics;
2001 int flag_default_double;
2002 int flag_default_integer;
2003 int flag_default_real;
2005 int flag_underscoring;
2006 int flag_second_underscore;
2007 int flag_implicit_none;
2008 int flag_max_stack_var_size;
2009 int flag_max_array_constructor;
2010 int flag_range_check;
2011 int flag_pack_derived;
2012 int flag_repack_arrays;
2013 int flag_preprocessed;
2018 int flag_allow_leading_underscore;
2020 int flag_external_blas;
2021 int blas_matmul_limit;
2022 int flag_cray_pointer;
2026 int flag_module_private;
2028 int flag_init_local_zero;
2029 int flag_init_integer;
2030 int flag_init_integer_value;
2032 int flag_init_logical;
2033 int flag_init_character;
2034 char flag_init_character_value;
2035 int flag_align_commons;
2036 int flag_whole_file;
2046 int max_subrecord_length;
2050 extern gfc_option_t gfc_option;
2052 /* Constructor nodes for array and structure constructors. */
2053 typedef struct gfc_constructor
2056 gfc_iterator *iterator;
2058 struct gfc_constructor *next;
2061 mpz_t offset; /* Record the offset of array element which appears in
2062 data statement like "data a(5)/4/". */
2063 gfc_component *component; /* Record the component being initialized. */
2066 mpz_t repeat; /* Record the repeat number of initial values in data
2067 statement like "data a/5*10/". */
2072 typedef struct iterator_stack
2074 gfc_symtree *variable;
2076 struct iterator_stack *prev;
2079 extern iterator_stack *iter_stack;
2082 /* Node in the linked list used for storing finalizer procedures. */
2084 typedef struct gfc_finalizer
2086 struct gfc_finalizer* next;
2087 locus where; /* Where the FINAL declaration occurred. */
2089 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
2090 symtree and later need only that. This way, we can access and call the
2091 finalizers from every context as they should be "always accessible". I
2092 don't make this a union because we need the information whether proc_sym is
2093 still referenced or not for dereferencing it on deleting a gfc_finalizer
2095 gfc_symbol* proc_sym;
2096 gfc_symtree* proc_tree;
2099 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
2102 /************************ Function prototypes *************************/
2105 bool gfc_in_match_data (void);
2108 void gfc_scanner_done_1 (void);
2109 void gfc_scanner_init_1 (void);
2111 void gfc_add_include_path (const char *, bool, bool);
2112 void gfc_add_intrinsic_modules_path (const char *);
2113 void gfc_release_include_path (void);
2114 FILE *gfc_open_included_file (const char *, bool, bool);
2115 FILE *gfc_open_intrinsic_module (const char *);
2117 int gfc_at_end (void);
2118 int gfc_at_eof (void);
2119 int gfc_at_bol (void);
2120 int gfc_at_eol (void);
2121 void gfc_advance_line (void);
2122 int gfc_check_include (void);
2123 int gfc_define_undef_line (void);
2125 int gfc_wide_is_printable (gfc_char_t);
2126 int gfc_wide_is_digit (gfc_char_t);
2127 int gfc_wide_fits_in_byte (gfc_char_t);
2128 gfc_char_t gfc_wide_tolower (gfc_char_t);
2129 gfc_char_t gfc_wide_toupper (gfc_char_t);
2130 size_t gfc_wide_strlen (const gfc_char_t *);
2131 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
2132 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
2133 char *gfc_widechar_to_char (const gfc_char_t *, int);
2134 gfc_char_t *gfc_char_to_widechar (const char *);
2136 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
2138 void gfc_skip_comments (void);
2139 gfc_char_t gfc_next_char_literal (int);
2140 gfc_char_t gfc_next_char (void);
2141 char gfc_next_ascii_char (void);
2142 gfc_char_t gfc_peek_char (void);
2143 char gfc_peek_ascii_char (void);
2144 void gfc_error_recovery (void);
2145 void gfc_gobble_whitespace (void);
2146 gfc_try gfc_new_file (void);
2147 const char * gfc_read_orig_filename (const char *, const char **);
2149 extern gfc_source_form gfc_current_form;
2150 extern const char *gfc_source_file;
2151 extern locus gfc_current_locus;
2153 void gfc_start_source_files (void);
2154 void gfc_end_source_files (void);
2157 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
2158 void gfc_free (void *);
2159 int gfc_terminal_width (void);
2160 void gfc_clear_ts (gfc_typespec *);
2161 FILE *gfc_open_file (const char *);
2162 const char *gfc_basic_typename (bt);
2163 const char *gfc_typename (gfc_typespec *);
2164 const char *gfc_op2string (gfc_intrinsic_op);
2165 const char *gfc_code2string (const mstring *, int);
2166 int gfc_string2code (const mstring *, const char *);
2167 const char *gfc_intent_string (sym_intent);
2169 void gfc_init_1 (void);
2170 void gfc_init_2 (void);
2171 void gfc_done_1 (void);
2172 void gfc_done_2 (void);
2174 int get_c_kind (const char *, CInteropKind_t *);
2177 unsigned int gfc_init_options (unsigned int, const char **);
2178 int gfc_handle_option (size_t, const char *, int);
2179 bool gfc_post_options (const char **);
2182 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
2183 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
2187 typedef struct gfc_error_buf
2190 size_t allocated, index;
2194 void gfc_error_init_1 (void);
2195 void gfc_buffer_error (int);
2197 const char *gfc_print_wide_char (gfc_char_t);
2199 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2200 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2201 void gfc_clear_warning (void);
2202 void gfc_warning_check (void);
2204 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2205 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2206 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2207 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2208 void gfc_clear_error (void);
2209 int gfc_error_check (void);
2210 int gfc_error_flag_test (void);
2212 notification gfc_notification_std (int);
2213 gfc_try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2215 /* A general purpose syntax error. */
2216 #define gfc_syntax_error(ST) \
2217 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2219 void gfc_push_error (gfc_error_buf *);
2220 void gfc_pop_error (gfc_error_buf *);
2221 void gfc_free_error (gfc_error_buf *);
2223 void gfc_get_errors (int *, int *);
2226 void gfc_arith_init_1 (void);
2227 void gfc_arith_done_1 (void);
2228 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
2229 arith gfc_check_integer_range (mpz_t p, int kind);
2230 bool gfc_check_character_range (gfc_char_t, int);
2233 gfc_try gfc_check_any_c_kind (gfc_typespec *);
2234 int gfc_validate_kind (bt, int, bool);
2235 extern int gfc_index_integer_kind;
2236 extern int gfc_default_integer_kind;
2237 extern int gfc_max_integer_kind;
2238 extern int gfc_default_real_kind;
2239 extern int gfc_default_double_kind;
2240 extern int gfc_default_character_kind;
2241 extern int gfc_default_logical_kind;
2242 extern int gfc_default_complex_kind;
2243 extern int gfc_c_int_kind;
2244 extern int gfc_intio_kind;
2245 extern int gfc_charlen_int_kind;
2246 extern int gfc_numeric_storage_size;
2247 extern int gfc_character_storage_size;
2250 void gfc_clear_new_implicit (void);
2251 gfc_try gfc_add_new_implicit_range (int, int);
2252 gfc_try gfc_merge_new_implicit (gfc_typespec *);
2253 void gfc_set_implicit_none (void);
2254 void gfc_check_function_type (gfc_namespace *);
2255 bool gfc_is_intrinsic_typename (const char *);
2257 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
2258 gfc_try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2260 void gfc_set_sym_referenced (gfc_symbol *);
2262 gfc_try gfc_add_attribute (symbol_attribute *, locus *);
2263 gfc_try gfc_add_allocatable (symbol_attribute *, locus *);
2264 gfc_try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2265 gfc_try gfc_add_external (symbol_attribute *, locus *);
2266 gfc_try gfc_add_intrinsic (symbol_attribute *, locus *);
2267 gfc_try gfc_add_optional (symbol_attribute *, locus *);
2268 gfc_try gfc_add_pointer (symbol_attribute *, locus *);
2269 gfc_try gfc_add_cray_pointer (symbol_attribute *, locus *);
2270 gfc_try gfc_add_cray_pointee (symbol_attribute *, locus *);
2271 gfc_try gfc_mod_pointee_as (gfc_array_spec *);
2272 gfc_try gfc_add_protected (symbol_attribute *, const char *, locus *);
2273 gfc_try gfc_add_result (symbol_attribute *, const char *, locus *);
2274 gfc_try gfc_add_save (symbol_attribute *, const char *, locus *);
2275 gfc_try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2276 gfc_try gfc_add_saved_common (symbol_attribute *, locus *);
2277 gfc_try gfc_add_target (symbol_attribute *, locus *);
2278 gfc_try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2279 gfc_try gfc_add_generic (symbol_attribute *, const char *, locus *);
2280 gfc_try gfc_add_common (symbol_attribute *, locus *);
2281 gfc_try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2282 gfc_try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2283 gfc_try gfc_add_data (symbol_attribute *, const char *, locus *);
2284 gfc_try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2285 gfc_try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2286 gfc_try gfc_add_elemental (symbol_attribute *, locus *);
2287 gfc_try gfc_add_pure (symbol_attribute *, locus *);
2288 gfc_try gfc_add_recursive (symbol_attribute *, locus *);
2289 gfc_try gfc_add_function (symbol_attribute *, const char *, locus *);
2290 gfc_try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2291 gfc_try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2292 gfc_try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2293 gfc_try gfc_add_abstract (symbol_attribute* attr, locus* where);
2295 gfc_try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2296 gfc_try gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
2297 gfc_try gfc_add_extension (symbol_attribute *, locus *);
2298 gfc_try gfc_add_value (symbol_attribute *, const char *, locus *);
2299 gfc_try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2300 gfc_try gfc_add_entry (symbol_attribute *, const char *, locus *);
2301 gfc_try gfc_add_procedure (symbol_attribute *, procedure_type,
2302 const char *, locus *);
2303 gfc_try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2304 gfc_try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2305 gfc_formal_arglist *, locus *);
2306 gfc_try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2308 void gfc_clear_attr (symbol_attribute *);
2309 gfc_try gfc_missing_attr (symbol_attribute *, locus *);
2310 gfc_try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2312 gfc_try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2313 gfc_symbol *gfc_use_derived (gfc_symbol *);
2314 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2315 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool);
2317 gfc_st_label *gfc_get_st_label (int);
2318 void gfc_free_st_label (gfc_st_label *);
2319 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2320 gfc_try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2322 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2324 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2325 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2326 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2327 void gfc_delete_symtree (gfc_symtree **, const char *);
2328 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2329 gfc_user_op *gfc_get_uop (const char *);
2330 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2331 void gfc_free_symbol (gfc_symbol *);
2332 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2333 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2334 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2335 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2336 gfc_try verify_c_interop (gfc_typespec *);
2337 gfc_try verify_c_interop_param (gfc_symbol *);
2338 gfc_try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2339 gfc_try verify_bind_c_derived_type (gfc_symbol *);
2340 gfc_try verify_com_block_vars_c_interop (gfc_common_head *);
2341 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2342 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2343 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
2344 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2345 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2347 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2349 void gfc_undo_symbols (void);
2350 void gfc_commit_symbols (void);
2351 void gfc_commit_symbol (gfc_symbol *);
2352 void gfc_free_charlen (gfc_charlen *, gfc_charlen *);
2353 void gfc_free_namespace (gfc_namespace *);
2355 void gfc_symbol_init_2 (void);
2356 void gfc_symbol_done_2 (void);
2358 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2359 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2360 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2361 void gfc_save_all (gfc_namespace *);
2363 void gfc_symbol_state (void);
2364 void gfc_free_dt_list (void);
2367 gfc_gsymbol *gfc_get_gsymbol (const char *);
2368 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2370 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
2371 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, gfc_try*, const char*, bool);
2373 void copy_formal_args (gfc_symbol *, gfc_symbol *);
2374 void copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *);
2376 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
2378 gfc_try gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
2381 extern int gfc_init_expr;
2383 /* Given a symbol that we have decided is intrinsic, mark it as such
2384 by placing it into a special module that is otherwise impossible to
2387 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2389 void gfc_intrinsic_init_1 (void);
2390 void gfc_intrinsic_done_1 (void);
2392 char gfc_type_letter (bt);
2393 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2394 gfc_try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2395 gfc_try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2396 gfc_try gfc_convert_chartype (gfc_expr *, gfc_typespec *);
2397 int gfc_generic_intrinsic (const char *);
2398 int gfc_specific_intrinsic (const char *);
2399 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
2400 int gfc_intrinsic_actual_ok (const char *, const bool);
2401 gfc_intrinsic_sym *gfc_find_function (const char *);
2402 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2404 match gfc_intrinsic_func_interface (gfc_expr *, int);
2405 match gfc_intrinsic_sub_interface (gfc_code *, int);
2407 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
2408 gfc_try gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
2411 /* match.c -- FIXME */
2412 void gfc_free_iterator (gfc_iterator *, int);
2413 void gfc_free_forall_iterator (gfc_forall_iterator *);
2414 void gfc_free_alloc_list (gfc_alloc *);
2415 void gfc_free_namelist (gfc_namelist *);
2416 void gfc_free_equiv (gfc_equiv *);
2417 void gfc_free_data (gfc_data *);
2418 void gfc_free_case_list (gfc_case *);
2420 /* matchexp.c -- FIXME too? */
2421 gfc_expr *gfc_get_parentheses (gfc_expr *);
2424 void gfc_free_omp_clauses (gfc_omp_clauses *);
2425 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2426 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2427 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2428 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2431 void gfc_free_actual_arglist (gfc_actual_arglist *);
2432 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2433 const char *gfc_extract_int (gfc_expr *, int *);
2434 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2435 bool is_subref_array (gfc_expr *);
2437 gfc_expr *gfc_build_conversion (gfc_expr *);
2438 void gfc_free_ref_list (gfc_ref *);
2439 void gfc_type_convert_binary (gfc_expr *);
2440 int gfc_is_constant_expr (gfc_expr *);
2441 gfc_try gfc_simplify_expr (gfc_expr *, int);
2442 int gfc_has_vector_index (gfc_expr *);
2444 gfc_expr *gfc_get_expr (void);
2445 void gfc_free_expr (gfc_expr *);
2446 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2447 gfc_expr *gfc_int_expr (int);
2448 gfc_expr *gfc_logical_expr (int, locus *);
2449 mpz_t *gfc_copy_shape (mpz_t *, int);
2450 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2451 gfc_expr *gfc_copy_expr (gfc_expr *);
2452 gfc_ref* gfc_copy_ref (gfc_ref*);
2454 gfc_try gfc_specification_expr (gfc_expr *);
2456 int gfc_numeric_ts (gfc_typespec *);
2457 int gfc_kind_max (gfc_expr *, gfc_expr *);
2459 gfc_try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
2460 gfc_try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2461 gfc_try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2462 gfc_try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2464 gfc_expr *gfc_default_initializer (gfc_typespec *);
2465 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2467 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
2468 bool (*)(gfc_expr *, gfc_symbol *, int*),
2470 void gfc_expr_set_symbols_referenced (gfc_expr *);
2471 gfc_try gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
2472 void gfc_expr_replace_symbols (gfc_expr *, gfc_symbol *);
2475 extern gfc_code new_st;
2477 void gfc_clear_new_st (void);
2478 gfc_code *gfc_get_code (void);
2479 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2480 void gfc_free_statement (gfc_code *);
2481 void gfc_free_statements (gfc_code *);
2484 gfc_try gfc_resolve_expr (gfc_expr *);
2485 void gfc_resolve (gfc_namespace *);
2486 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2487 int gfc_impure_variable (gfc_symbol *);
2488 int gfc_pure (gfc_symbol *);
2489 int gfc_elemental (gfc_symbol *);
2490 gfc_try gfc_resolve_iterator (gfc_iterator *, bool);
2491 gfc_try find_forall_index (gfc_expr *, gfc_symbol *, int);
2492 gfc_try gfc_resolve_index (gfc_expr *, int);
2493 gfc_try gfc_resolve_dim_arg (gfc_expr *);
2494 int gfc_is_formal_arg (void);
2495 void gfc_resolve_substring_charlen (gfc_expr *);
2496 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2500 void gfc_free_array_spec (gfc_array_spec *);
2501 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2503 gfc_try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2504 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2505 gfc_try gfc_resolve_array_spec (gfc_array_spec *, int);
2507 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2509 gfc_expr *gfc_start_constructor (bt, int, locus *);
2510 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2511 void gfc_free_constructor (gfc_constructor *);
2512 void gfc_simplify_iterator_var (gfc_expr *);
2513 gfc_try gfc_expand_constructor (gfc_expr *);
2514 int gfc_constant_ac (gfc_expr *);
2515 int gfc_expanded_ac (gfc_expr *);
2516 gfc_try gfc_resolve_character_array_constructor (gfc_expr *);
2517 gfc_try gfc_resolve_array_constructor (gfc_expr *);
2518 gfc_try gfc_check_constructor_type (gfc_expr *);
2519 gfc_try gfc_check_iter_variable (gfc_expr *);
2520 gfc_try gfc_check_constructor (gfc_expr *, gfc_try (*)(gfc_expr *));
2521 gfc_constructor *gfc_copy_constructor (gfc_constructor *);
2522 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2523 gfc_try gfc_array_size (gfc_expr *, mpz_t *);
2524 gfc_try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2525 gfc_try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2526 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2527 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2528 gfc_constructor *gfc_get_constructor (void);
2529 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2530 gfc_try spec_size (gfc_array_spec *, mpz_t *);
2531 gfc_try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2532 int gfc_is_compile_time_shape (gfc_array_spec *);
2534 gfc_try gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *);
2537 /* interface.c -- FIXME: some of these should be in symbol.c */
2538 void gfc_free_interface (gfc_interface *);
2539 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2540 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2541 int gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, int);
2542 void gfc_check_interfaces (gfc_namespace *);
2543 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2544 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2545 gfc_actual_arglist **);
2546 gfc_try gfc_extend_expr (gfc_expr *);
2547 void gfc_free_formal_arglist (gfc_formal_arglist *);
2548 gfc_try gfc_extend_assign (gfc_code *, gfc_namespace *);
2549 gfc_try gfc_add_interface (gfc_symbol *);
2550 gfc_interface *gfc_current_interface_head (void);
2551 void gfc_set_current_interface_head (gfc_interface *);
2552 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
2553 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
2556 extern gfc_st_label format_asterisk;
2558 void gfc_free_open (gfc_open *);
2559 gfc_try gfc_resolve_open (gfc_open *);
2560 void gfc_free_close (gfc_close *);
2561 gfc_try gfc_resolve_close (gfc_close *);
2562 void gfc_free_filepos (gfc_filepos *);
2563 gfc_try gfc_resolve_filepos (gfc_filepos *);
2564 void gfc_free_inquire (gfc_inquire *);
2565 gfc_try gfc_resolve_inquire (gfc_inquire *);
2566 void gfc_free_dt (gfc_dt *);
2567 gfc_try gfc_resolve_dt (gfc_dt *);
2568 void gfc_free_wait (gfc_wait *);
2569 gfc_try gfc_resolve_wait (gfc_wait *);
2572 void gfc_module_init_2 (void);
2573 void gfc_module_done_2 (void);
2574 void gfc_dump_module (const char *, int);
2575 bool gfc_check_access (gfc_access, gfc_access);
2576 void gfc_free_use_stmts (gfc_use_list *);
2579 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2580 symbol_attribute gfc_expr_attr (gfc_expr *);
2581 match gfc_match_rvalue (gfc_expr **);
2582 match gfc_match_varspec (gfc_expr*, int, bool);
2583 int gfc_check_digit (char, int);
2586 void gfc_generate_code (gfc_namespace *);
2587 void gfc_generate_module_code (gfc_namespace *);
2590 typedef int (*compare_fn) (void *, void *);
2591 void gfc_insert_bbt (void *, void *, compare_fn);
2592 void gfc_delete_bbt (void *, void *, compare_fn);
2594 /* dump-parse-tree.c */
2595 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
2598 gfc_try gfc_parse_file (void);
2599 void gfc_global_used (gfc_gsymbol *, locus *);
2602 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2603 int gfc_is_data_pointer (gfc_expr *);
2606 gfc_try gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
2608 #endif /* GCC_GFORTRAN_H */